EP 2489591 B1 20170405 - Air-ground detection system for semi-levered landing gear
Title (en)
Air-ground detection system for semi-levered landing gear
Title (de)
Luft-Boden-Erkennungssystem für Flugzeugfahrwerk
Title (fr)
Système de détection air-sol pour train d'atterrissage
Publication
Application
Priority
US 201113031525 A 20110221
Abstract (en)
[origin: EP2489591A1] A method and apparatus for air-ground detection. A truck beam (506) of a semi-levered landing gear is mounted on a pivot pin (508). The truck beam is configured to rotate about the pivot pin between a toes down position and a toes up position. A positioning mechanism (515) is connected to a locking mechanism that secures an angle of the truck beam in the toes up position. The locking mechanism is secured in a steady state and configured to change from the steady state to a locked state in response to an initial ground contact. A sensor is connected to the locking mechanism. The sensor is configured to detect a change from the steady state to the locked state.
IPC 8 full level
B64C 25/32 (2006.01)
CPC (source: EP US)
B64C 25/00 (2013.01 - EP US); B64C 25/36 (2013.01 - US); B64C 25/62 (2013.01 - US); B64D 45/06 (2013.01 - US); B64C 2025/008 (2013.01 - EP US); B64C 2025/345 (2013.01 - US)
Citation (examination)
GB 2428650 A 20070207 - MESSIER DOWTY LTD [GB]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2489591 A1 20120822; EP 2489591 B1 20170405; ES 2623929 T3 20170712; US 2012211600 A1 20120823; US 2015266592 A1 20150924; US 8939400 B2 20150127; US 9499280 B2 20161122
DOCDB simple family (application)
EP 12156210 A 20120220; ES 12156210 T 20120220; US 201113031525 A 20110221; US 201414479319 A 20140907